/*
File chooser demo and the values returned for file names.

You can have a file filter, for example "*.java" and get a list of all
the files in the directory with that extension.

Mike Barnes
9/17/02
*/

// FileChooserDemo from sun  -- 

import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.filechooser.*;

public class FileChooserDemo extends JFrame {
  static private final String newline = "\n";

  public FileChooserDemo() {
    super("Look for *.java files");

    //Create the log first, because the action listeners
    //need to refer to it.
    final JTextArea log = new JTextArea(5,20);
    log.setMargin(new Insets(5,5,5,5));
    log.setEditable(false);
    JScrollPane logScrollPane = new JScrollPane(log);


    //Create a file chooser
    File currentDirectory = new File("");
    final JFileChooser fc = new JFileChooser(currentDirectory);
    final SingleFileFilter classFilter = 
      new SingleFileFilter("java", "Java source files");

    // renzo --  add SingleFileFilter
    fc.addChoosableFileFilter(classFilter);

    //Create the open button
    // open.gif found in C:\j2sdk1.4.2_01\demo\jfc\Notepad\resources
    ImageIcon openIcon = new ImageIcon("open.gif");
    JButton openButton = new JButton("Open a File...", openIcon);
    openButton.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e)  {
        File [] files = null;
        int returnVal = fc.showOpenDialog(FileChooserDemo.this);

        if (returnVal == JFileChooser.APPROVE_OPTION) {
          File file = fc.getSelectedFile();
          //this is where a real application would open the file.
          // renzo - add all info about file
          log.append("Opening: " + newline);
          log.append("file name:   " +  file.getName() + newline);
          log.append("path:   " +  file.getPath() + newline);
          log.append("absolute path:   " + file.getAbsolutePath() + newline);
          try{
            log.append("canonical path:   " + file.getCanonicalPath() 
              + newline);
            }
          catch (IOException ioe) {System.out.println(ioe);};
          if (file.isDirectory()) 
              log.append("A directory" + newline);
            else {
              log.append("Not a directory get parent:  ");
              file = file.getParentFile();
              log.append("Parent directory " + file.getPath() + newline);
            }
          //  show files
          files = file.listFiles();
          log.append("Directory has " + files.length + " files" + newline);
          for (int i = 0; i < files.length; i++) 
          log.append("\t" + files[i] + newline);
          } 
         else {
           log.append("Open command cancelled by user." + newline);
         }
      }
    });


    //For layout purposes, put the buttons in a separate panel
    JPanel buttonPanel = new JPanel();
    buttonPanel.add(openButton);


    //Add the buttons and the log to the frame
    Container contentPane = getContentPane();
    contentPane.add(buttonPanel, BorderLayout.NORTH);
    contentPane.add(logScrollPane, BorderLayout.CENTER);
  }

  public static void main(String[] args) {
    JFrame frame = new FileChooserDemo();

    frame.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        System.exit(0);
      }
    });

    frame.pack();
    frame.setVisible(true);
  }
}